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        // let num = prompt('请输入一个数字');
        // alert(num % 2 == 0 && num % 6 == 0);

        let chengji = +prompt('请输入成绩')
        if (chengji >= 700) {
            alert('你能考入赣师专')
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            alter('你可能与师专无缘')
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